<button class="button">
  NEON
</button>
<style>
/* From Uiverse.io by mayurd8862 - Tags: neon, #button */
.button {
  padding: 0.6em 1.3em;
  font-weight: 900;
  font-size: 18px;
  background-color: rgb(40, 40, 40);
  border-radius: 10px;
  border: 1px solid rgb(232, 97, 124);
  color: aliceblue;
  box-shadow: 0 0 25px rgb(232, 97, 124),
              0 0 25px rgb(232, 97, 124),
              0 0 5px rgb(232, 97, 124) inset;
  cursor: pointer;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgb(232, 97, 124),
              0 0 30px rgb(232, 97, 124),
              0 0 10px rgb(232, 97, 124) inset;
}


</style>
